Thread: read-only data members. A question of good practices

Code:

class myClass {
public:
    myClass(): val(0), value(val) {}
    myClass(int x): val(x), value(val) {}
    void set_value(int x) { val = x; }
private:
    int val;
public:
    const int &value;
};

The above is a minimalist example to illustrate my question...

Instead of coding getters for every data member, is the const reference considered a correct approach within the context of good programming practices under C++?

EDIT: I understand this forces me to overload the assignment operator. But still... is this a common practice?